Combined lock and latch



April 7, 9 l. s. KEELER COMBINED LOCK AND LATCH Filed June 25, 192 8INVENTOR Isaac Q5. K229?!- BY f wommys Patented Apr. 7, 1931 UNITEDSTATES- PATENT: OFFICE ISAAC S. KFZIEILIITR, F GRAND RAPIDS, MICHIGAN,ASSIGNOR '10 KEELER BRASS CO M- 7 PANY, OF GRAND RAPIDS, MICHIGAN umt.

COMBINED LOCK AND LATCH Application filed June 25,

The main objects of this invention are:

First, to provide a combined lock and latch which is well adapted forautomobile doors and the like and one in which the parts are so arrangedthat when the latch is locked it is very difiicult to open by force orby breaking the parts.

Second, to provide a structure having these advantages in which when thelatch is unlocked the haiidle is free and maybe turned round and round.

Third, to provide a structure having these advantages which is verysimple in its parts and at the same time very strong and durable.Objects pertaining to details and economies of my invention willdefinitely appear from the description to follow. The invention isdefined in the claim.

A structure embodying the features of my invention is clearlyillustrated in the accompanying drawing, in which:

Fig. 1 is a side view of my improved latch partially in longitudinalsection on line 11 of Fig. 2.

Fig. 2 is a front view. Fig. 3 is a detail view mainly in centrallongitudinal section with the parts in locked position.

Fig. 4 is a detail section on line 4-4 of Fig. 3.

- Fig. 5 is a perspective view of the locking In the embodimentillustrated the handpiece 1 is elongated as is common practice inlatches for automobile doors. This hand piece is provided with acylindrical sleeve 2 which'is rotatably supported in the escutcheonplate 3. A finishing housing 4 is provided for the sleeve. The spindle 5is provided with a head 6 disposed within and rotatably associated withthe sleeve. This head 6 is provided with a transverse slot 7 adapted toreceive' thebolt 8. The bolt 8 is provided with lugs lug 15'on the bolt,so

1928. Serial No. 287,922.

9 engaging in the longitudinal slots 10 in the sleeve so that the boltis supported for longitudinal movement in thesleeve but is rotatedtherewith. The bolt is provided with a cuplike chamber or recess 11adapted to receive the reduced portion 12 of the locking cylinder orunit 13.

This locking unit is mounted within the sleeve to be actuated by a keyand is provided with a cam groove 14 engaged by a r is actuated to lockand unlock the latch, the bolt is disengaged and engaged, respectively,with the spindle.

When the bolt is in locking position shown in Fig. 3 the handpiece 1 isfree to turn relative to the spindle so that the door cannot be openedby means of the handpiece. How

' ever, when the bolt is in engaged position shown in Fig. 1 the spindleis turned with the handpiece.

I have not illustrated the details of the locking unit other than thecam feature as such details form no part of this invention, the lockingunit being preferably of the tumbler type.

that as the locking mem- My improved combined lock and latch is verysimple in its parts and at the same time is strong and effective inpreventing the opening of a door by methods sometimes employed offorcibly turning a locked'handle.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is: 1

The combination with a rotatably sup ported handpiece provided with asleevelongitudinally slotted at its end, of a spindle provided with atransversely slotted head ro tatable within said sleeve, a bolt mountedwithin said sleeve and engaging said slots thereof whereby it issupported for rotative movement with the sleeve and for longitudinalmovement therein, permitting its adjustment into and out of engagementwith said slot in said spindle, said bolt having a cup like recess inits outer end, a locking unit mounted within said sleeve and providedwith a part projecting into said recess in said bolt and having aperipheral spiral cam 5 groove, and :1 lug on said bolt coacting withsaid groove whereby the bolt is moved into and out of engagement withsaid spindle by the actuation of said locking unit.

In Witness whereof I have hereunto set my hand.

ISAAC S. ICEELER.

